.next {
    width: 150px;
    height: 50px;
    font-size: 20px;
    color: black;
    background-color: rgb(241, 170, 40);
    border: none;
    outline: none;
    border-radius: 10px;
    float: right;

    line-height: 50px;
    text-align: center;
    margin-top: 20px;
    caret-color: transparent;
 }

.back {
      width: 150px;
      height: 50px;
      font-size: 20px;
      color: black;
      background-color: rgb(241 170 40);
      border: none;
      outline: none;
      border-radius: 10px;
      float: left;

      line-height: 50px;
      text-align: center;
      margin-top: 20px;
      caret-color: transparent;
  }

.tips {
    width: 150px;
    text-align: center;
    caret-color: transparent;
}